52251205 has 4 divisors (see below), whose sum is σ = 62701452. Its totient is φ = 41800960.

The previous prime is 52251187. The next prime is 52251209. The reversal of 52251205 is 50215225.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10751841 + 41499364 = 3279^2 + 6442^2 .

It is not a de Polignac number, because 52251205 - 2⁷ = 52251077 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52251209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5225116 + ... + 5225125.

It is an arithmetic number, because the mean of its divisors is an integer number (15675363).

Almost surely, 2^52251205 is an apocalyptic number.

It is an amenable number.

52251205 is a deficient number, since it is larger than the sum of its proper divisors (10450247).

52251205 is a wasteful number, since it uses less digits than its factorization.

52251205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10450246.

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 52251205 is about 7228.4994985128. The cubic root of 52251205 is about 373.8511923848.

It can be divided in two parts, 5 and 2251205, that multiplied together give a square (11256025 = 3355²).

The spelling of 52251205 in words is "fifty-two million, two hundred fifty-one thousand, two hundred five".